:sparkles: splash page siimee logo added and button styled

frontend/src/components/onboarding/Splash.vue

 <template lang="pug">
-.splash
-    .splash--icon(style='width: 347px; height: 347px; background-color: red')
-    div(style='text-align: center')
-        w-button.ma1.grow(@click='handleSubmit') GET STARTED
-
+w-flex.column
+    w-image.splash-logo(:height='300' :src='`/assets/logos/siimee_logo.jpg`' :width='300')
+    w-button.ma1.grow.next-btn(
+        :height='50'
+        :width='315'
+        @click='this.$emit("go-to-step", currentStep + 1)'
+        bg-color='success'
+        shadow
+        text
+        xl
+    ) GET STARTED
 </template>
 
 <script>
             this.$emit('update-answers', null)
         },
     },
-
 }
 </script>
+
+<style lang="sass">
+.w-button
+    &.next-btn
+        background-color: #5BA626
+</style>